BIOT hand prosthesis by BiomecanicaIOT

Last crawled date: 3 years ago

BIOT Version 3.0! Release 05/03/2016
Improovement:
The thumb can be manually repositioned (adduction) to perform opposition with second and third finger.
All files can be download under the "Thing files" tab shown above.
Printer settings:
-Scale according hand width using the formula
scale = (hand width + 2Xfoam padding thickness) / 88
-enable support material
Print the following files in the respective amounts:
1 - hand_right side_5fingers.stl (use the mirror function to reverse size!)
or
1 - hand_right side_5fingers_support.stl (additional support in case of printing problems) - recommended!
1 - forearm support.stl
1 - cylinder.stl
1 - tensioner support.stl
5 - tensioner.stl
1 - distal metacarpal_1st finger.stl
1 - distal metacarpal_2nd finger.stl
1 - distal metacarpal_3rd finger.stl
1 - distal metacarpal_4th finger.stl
1 - distal metacarpal_5th finger.stl
1 - distal_medial phalange_1st finger.stl
1 - distal_medial phalange_2nd finger.stl
1 - distal_medial phalange_3rd finger.stl
1 - distal_medial phalange_4th finger.stl
1 - distal_medial phalange_5th finger.stl
1 - proximal phalange_1st finger.stl
1 - proximal phalange_2nd finger.stl
1 - proximal phalange_3rd finger.stl
1 - proximal phalange_4th finger.stl
1 - proximal phalange_5th finger.stl
Clamping elements :
2 - screw post (5 mm diameter x 10 mm length) [a]
1 - screw post (5 mm diameter x 40 mm length) [a]
10 - metric machine screw (phillips pan head) M4 x 15 mm length [a]
1 - metric machine screw (without head) M4 x 10 mm length [b]
5 - wood screw (3,5 mm diameter x 25 mm length)
[a] screw length may vary according the print scale
[b] used to join first finger with the hand
Finger flexion of BIOT prothesis can be activated by wrist extension or flexion wrist, diferently from most prothesis found on the internet that are activated only by wrist flexion. Despite this facility, we recommend wrist extension because it´s more phisiological and natural movement during flexion of the fingers.
Acknowledgements:
The BIOT prothesis was developed by César Augusto Martins Pereira from Biomechanics Laboratory of IOT-HC-FMUSP in conjunction with the occupational therapist Maria Candida de Miranda Luzo from occupational therapy service of the same hospital.
Instructions:
Assembling instructions available in portuguese (manual version2.pdf). The BIOT can be viewed in 3D PDF files: BIOT_closed.pdf or BIOT_opened.pdf